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Finding the Fourth Proportional to 191,380.88, 264,134.66 and 114,942.20

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Solution

The fourth proportional to 191,380.88, 264,134.66 and 114,942.20 is: 158,637.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,380.88 : 264,134.66 = 114,942.20 : x
  2. Step 2: Convert to fraction form
    191,380.88/264,134.66 = 114,942.20/x
  3. Step 3: Cross multiply
    191,380.88x = 264,134.66 × 114,942.20
  4. Step 4: Simplify right side
    191,380.88x = 30,360,217,021.27
  5. Step 5: Solve for x
    x = 30,360,217,021.27/191,380.88
  6. Step 6: Final answer
    x = 158,637.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.